%r{\.(gif|jpg|png)$}i, What does the i do? posted by Sam Ruby @ Fri, 25 Apr 2008 13:19:48 -0000

Sam Ruby — Fri, 25 Apr 2008 13:19:48 -0000

It makes the regular expression case insensitive. With the i specified, the regular expression will match gif, GIF, Gif, gIf, etc.

%r{\.(gif|jpg|png)$}i, What does the i do? posted by Martin Hawkins @ Fri, 25 Apr 2008 13:15:28 -0000

Martin Hawkins — Fri, 25 Apr 2008 13:15:28 -0000

v2, p85:
validates_format_of :image_url,
:with => %r{\.(gif|jpg|png)$}i,
:message => “must be a URL for a GIF, JPG, or PNG image”

What does the “i” do at the end of the second line? I’ve tried it without and it seems to run fine.